Sheet-delivery mechanism for printing-machines.



H. M. BARBER.

SHEET DELIVERY MECHANISM FOR PRINTING MACHINES.

APPLICATION FILED MAR. 16; 1911.

Patented Nov. 11, 1913.

8 w w/ 3 2 W m W 8 v m 7 a Q m w 1 1 H. M. BARBER. SHEET DELIVERYMECHANISM FOR PRINTING MACHINES.

APPLICATION FILED MAR.16,1911.

Patented Nov. 11, 1913.

2 SHEETS-SHEBT 2.

U ITED STATES PATENT onnrcn.

HOWARD M. BARBER, or STONINGTON,

CONNECTICUT, ASSIGNOR TO C. B. COTTRELL &

SONS'COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

SHEET-DELIVERY. MEcHANIsi/i FOR PRINTING-MACHINES.

Specification of Iietters Patent. Application filed March 16, 1911.

"Patented Nov. 1 1, 1 913. Serial No. 614,794.

pointdifferent from the, regular delivery.

point, for the purposes of inspection.

In all .classes of printing and especially in color printing, it isessential that the pressnian be able to frequently inspect the productof the press, In ordinary practice the pressnian has to manuallywithdraw the product as it is' being automatically delivered, whichoperationis diiiicult.

where the sheet is a large and heavy one.

The object of this invention is to eliminate this dillicult manualwithdrawal of the sheet for inspection, means under the-control of thepressman being employed for causing a sheet to be thrown out on to aninspection table at any time during the op- Fig.

eration of the machine.

'A practical embodiment of the invention is represented in theaccompanying draws ings, in which,

Figure 1 represents the delivery mechanism fora web printing machine, inside elevation, the parts bein shown in the position which they .ingdelivered on to the inspection table. 2 is a longitudinal verticalsection through the same. Fig. 3 is a detail view showing the gearedconnection. between the evcral operative parts. Fig. 4 is a detail viewshowing the means for controlling the opening and closing of thegrippers on the transfer and delivery cylinders, Fig. 5 is a detail sideview showing the position which the parts assume when the product isbeing regularly delivered on to the sheet receiving table. Fig 6 is anenlarged detail front view of the manually controlled means for causingthe delivery cylinder to deliver a assume when a sheet is be-" sheet onto the inspection table. Fig. 7 is a section taken in tl e plane of theline AA of Fig/6. Fig. 8 is a detail view on the same scale as Fig. (3,of the lower end of the control lever for the inspection deliverymechanism, the manually operated latch being shown in its inoperativeposition. Fig. 9 is a section taken in the plane of the line B-B of Fig.8, and Fig. 10 is a section similar to Fig. 9, with the manuallyoperated latch shown in its operative position.

The rotary cutters for severing the sheets from the web are denoted by1,1*. The transfer cylinder for receiving the sheets from the cuttersand transferring them to the delivery cylinder, is denoted by 2. The

delivery cylinder is denotedfby 3' and the sheet rece1ving table isdenoted by 4:. In

the present instance the rotary cutters 1, 1*,

three sets of co-actingthe transfer cylinder is shown asare providedwith blades 5, provided with two sets of grippers 6 and the deliverycylinder 8 is shown "s provided with four sets of grippers7. The sheetinspection table is denoted by 8 and is herein shown as located inposition to receive the sheets from the delivery cylinder after theyhave been transferred thereto by the transfer cylinder 2 and before thepoint of delivcry to the sheet receiving table 4-. It isto be understoodhowever, that this sheet inspe0- tion table 8-may be located at anyconvenient position around the ,delivery cylinder 3 and need not be atthe/position indicated therein. 7

The strippers for stripping the sheets from the delivery cylinder andguiding them to the forwarding rolls 9, 10, are denoted by 11, and arearranged to be moved into and out of operative position by mechanism tobe hereinafter described. The rolls for feeding the web to the r0- tarycutters are denoted by 12, 13. The rotary cutters are driven together bytheir intcrmeshing gears l4, 15. The geared driving connection betweenthe several parts is as follows: A gear. 16 on the shaft of the roll 12meshes with a gear 17 on the stud shaft 18, which gear 17 meshes with agear '19 on the shaft of the cutter 1. This gear 19 meshes with a.gearQO on the stud shaft 2i, which. gear .20 meshes with a gear 22 onthe shaft of the delivery cylinder 3. A second gear 23 on the shaft ofthe delivery cylinder 3, meshes with a gear 24 on the shaft 25 of thetransfer cylinder 2, and also with an intermediate gear 26, which inturn meshes with the gear 27 on the shaft of the inspection tableforwarding roll 9. This gear 27 meshes with a gear 26* on the otherinspection table forwarding roll 10. The shaft 25 of the transfercylinder 2 is pro vided with a rotary cam 2S for controlling themovements of the joggcrs 29, 30, for the sheets on the sheet receivingtable 4, through suitable mechanism which need not be specificallydescribed herein as it forms no part of the present invention.

A stationary cam 31 is arranged in position to engage the stud roller 32of the gripper opening lever 33 of each setof grippers 6 on the transfercylinder 2, for opening each set of grippers to receive a sheet from therotary cutters 1, 1*, and to open the grippers to transfer the sheet tothe grippers 7 on the delivery cylinder-3. The usual spring 34 isprovided for closing the grippers (3, when released from the cam 3t.

A stationary cam 35 is arranged in position to engage the stud roller 36on the gripper opening lever 37 of each set of grippers 7, for openingthe grippers to receive a sheet from the grippers 6 of the transfercylindcr 2. This cam is also arranged to open each set of grippers 7 inposition to deliver the sheets on to the sheet receiving table 4. In thepresent instance the cam 35 is so shaped that the set of grippers isopened for delivering a sheet on to the sheet receiving table 4 andremains open until a sheet is transferred thereto from the grippers (lof the transfer vlin(lcr 2. The usual spring 38 serves to close thegrippers 7 when disengaged from the cam I will now proceed to describethe man-' ually controlled mechanism for opening the grippers 7 andstripping the sheets from the oolivery cylinder and delivering them onto the inspection table 8.

A. cam 39 is fixed to the shaft of the delivery cylinder 3, which cam isprovided with a cylindrical rim 40 for nearly its entire circumference,said cylindrical rim being discontinued at one end and at its other endhaving an inwardly inclined narrowportion 41. A normally closed switch42 provided with acurved rim 43 which completes the break in thecylindrical rim 49 of the cam 39 when the switch is closed.

A spring 44 serves to normally hold this switch in its closed position.

A control 10 ver is fixed. to a rock shaft 45, the depend- 1 allymovable cam roller 47. A spring 48 serves to normally hold the roller 47in its operative position at the limit of its movement away from thelever arm 46.- A manually operated latch 49 hinged at 50 to the leverarm 46, has its free end arranged to be brought into engagement with adisk 51 on the rod 52 which carries the cam roller 47 for holding thecam roller out of its operative position with respect to the cam 39 whenso desired. The cam roller 47 is thrown by its spring 48 into itsoperative position with respect to the cam 39, by releasing the latch 49from its engagement with the disk 51. An uprising arm 53 of the controllever is fixed to the shaft 45 and a spring 54 serves to normally pressthe arm' forward and thereby the arm 46 with its cam roller 47 rearward.A cam 55 is fixed spection table. The strippers 11 are brought intotheir operative position for stripping the sheets from the deliverycylinder 3 as the rock shaft 45 is rocked out of its normal position,through an arm 56 and a link 57 connecting the said arm with the arm 53of the control lever. \Vhen the cam roller 47 is held by the manuallyoperated latch 49 out of its operative position, the said roller will beswung to a point within the periphery of the rim 40 of the cam 39. Whenthe control lever is in this position, the cam and the strippers 11 areswung out of their operative position, thus permitting the doliverycylinder 3 to regularly receive the sheets from the transfer cylinder 2and deliver them on to the sheet receiving table 4. \Vhen the pressmandesires to inspect the product, he throws the latch 4-9 out of itsoperative position, thus permitting the cam roller 47 to be thrown intoits operative position. As the delivery cylinder 3 continues itsrotation, the roller 47 will travel around within the cylindricalportion of the rim 40, until it reaches the inclined portion 41 withinthe curved portion 43 of the switch 42.

The further rotary movement of the dc-' 2, H1111 46 of which levercarries a lat'en i cam 53 and strim'iers it into their-oyerativcposition. This will cause the grippers 7 to open in time to permit thestrippers 11 to strip the'sheets from the cylinder 3 and the rollers 9,10, will positively feed the sheets on to the inspection table 8, Wherethey may be inspected at leisure bythe pressman. As soon as it isdesired to stop thedelivery of sheets for inspection, the roller 47 ismoved laterally out of its 0perative position by the pressman grippingthe handle 51. The roller 47 is held in this position by dropping thelatch l9 into -engagement with the disk 51. The cylindrical rim 40 onthe cam 39 will travel around heneath the roller until the narrowedortion at the switch 42 permits the roller an thereby the lever, to moveinto their normal position. 4

A sheet guide 58 is located in position to eoact with the strippers 11to feed the sheets to the forwarding rolls 9, 10.

This'mechanism may not only be used for delivering sheets to beinspected, but it may also be used for the purpose of throwing out thefirst few sheets printed after the press has been standing, as thesesheets are not allowed to go in with the regular product. i

It is to be understoodthat by the term cylinder I intend to cover anyoperative device for carrying the sheets through the prescribed paths,and by the term table I intend to cover any suitable surface adapted toreceive the sheets.

It is evident that various changes might be resorted to in theconstruction, form and arrangement of the various parts withoutdeparting from the spirit and scope of my invention; hence I do not wishto limit myself strictly to the structure herein set forth, but

What I claim is: y

A. sheet delivery mechanism including a rotary cylinder arranged toautomatically rece 'e the sheets at one point, a sheet receiving table,means for causing the cyl:

inder to regularly deliver the sheets thereto,

an inspection table and means for causing the cylinder to deliver sheetsthereto, when so desired.

2. A sheet delivery mechanism including a rotary cylinder arranged toautomatically receive the sheets at one point, a sheet receiving table,means for causing the cylinder to regularly deliver the sheets thereto,

an inspection tabl and manually controlled means for causing thecylinder to deliver sheets thereto, when so desired.

3. A sheet delivery mechanism including a rotary cylinder arranged toautomatically receive the sheets at one point, a sheet receiving table,means for causing the cylinder to regularly deliver the sheets thereto,

a sheet inspection table located intermediate 4. A sheet deliverymechanism including.

a rotary cylinder arranged to automatically receive the sheets at onepoint, a sheet receiving table and means for causing the-cylinder toregularly deliver the sheets thereto, .an inspection table locatedintermediate the receiving and delivery points of said cylinder andmanually controlled means for causing the cylinder to deliver sheets onto the inspect-ion table, when so desired.

5. A sheet delivery mechanism including a rotary cylinder, its grippers,means for opening the grippers at predetermined receiving and deliverypoints, and independ ent means for opening the grippers at anotherpredetermined delivery point including a gripper operating cam and amanually controlled lever for moving the cam into its operativeposition.

6. -A sheet delivery mechanism including a rotary cylinder, itsgrippers,

means for opening the grippers at predetermined receiving and deliverypoints and independent means for opening the grippers at anotherpredetermined delivery point including a gripper operating cam, sheetstrippers and a manually controlled lever for moving the cam and thestrippers into their operative positions.-

7. A sheet delivery mechanism including a rotary cylinder, its grippers,means for open ng the grippers at predetermined receiving and deliverypoints and independ.'

ent means for o ening the grippers at an other predetermined deliveryointincluding a gripper operating cam, s eetstrippers and a manuallycontrolled lever for moving the cam and the strippers into theiroperative positions, an inspection table and forwarding rolls forfeeding the sheets from the strippers on to the inspection table.

8. A sheet delivery mechanism including a rotary cylinder, its.grippers, means for opening the grippers at predetermined receiving anddelivery points and independent means for opening the grippers atanother predetermined delivery point comprising a lever, a gripperopening cam controlled thereby, a cam fixed to rotate with the cylinder,a cam roller carried by the lever and means for movingthe cam rollerinto and out of its engagement with the last named cam.

'9. A sheet delivery mechanism including a rotary cylinder, itsgrippers, means for opening the grippers at predetermined re-- ceivingand delivery points and independent means for opening the grippers atanother predetermined delivery point comprising a lever,

,a gripper opening cam controlled thereby a cam fixed to rotate with asmy invention, I have signed my name in the cylinder, a. cam rollercarried by the presence of two witnesses, this thirteenth 10 lever,means for moving the cam roller into day of March A. D. 1911. V

and out of its enga ement with the last 1 5 named cam and sheetstrippers moved into HOWARD BARBER and out of their operative positionby said Witnesses: lever. A. R. STInLMAN,

In testimony, that I claim the foregoing G. BURDICK.

